Christopher Oliver wrote:
>Hi Ivelin,
>
>Actually I believe it is possible to have continuations in pure Java --
>using bytecode rewriting -- however this approach is quite intrusive and its
>effect on performance and code-size is not insignificant (see:
>http://www.cs.kuleuven.ac.be/~tim/MOS/brakes.html). Nevertheless the
>performance of such instrumented code would likely still be significantly
>faster than interpreted Rhino. I think it would be interesting to prototype
>such an approach. If someone is interested in doing this for Cocoon, I
>suggest they contact the authors of Brakes and see if they might be
>interested in contributing their code to Apache. Given that I think it would
>be fairly straightforward to set up a pure Java flow layer similar to what
>Ovidiu has done with JavaScript.
>
>
Exactly my thoughts. I studied a bit what's done in Brakes and IMHO what
brings complexity here is that a thread can be suspended/resumed at any
point of its execution, and I believe continuations are easier to
implement since they are suspended and resumed in well-kown places.
This is one of my current background thinkings, and I plan to prototype
something if - as always - I find time for it.
Sylvain
--
Sylvain Wallez
Anyware Technologies Apache Cocoon
http://www.anyware-tech.com mailto:sylvain@apache.org
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